DCE support
Checking this parameter means this system performs the frame relay switch function for the LMI protocol.
N4
The maximum number of status enquiries this system will accept during the period defined by the T3 parameter. When this number is exceeded, this system simply increments a diagnostic statistic.
Polling verification timer (T2)
The frequency in seconds with which this system expects to receive status enquiries
T3
The measurement interval in seconds for the N4 counter